The chromatin is found within the nucleus of eukaryotic cells and the cytoplasm of prokaryotic cells.Chromatin, Chromosome, and Chromatid Although all the three structures i.e. chromatin, chromosomes, and chromatids are present in the nucleus of the cell and are composed of DNA, however, they ...
The machinery responsible for the removal or remodeling of nucleosomes, the so-called chromatin remodeling complexes, is highly conserved and underlies the creation of most nucleosome-free regions in the eukaryotic genome. (An alternative mechanism is sometimes used — the presence of DNA sequences ...
Discuss the major similarities and differences between prokaryotic cells and eukaryotic cells. How is the mitotic phase different from meiosis? Define homologous chromosomes in your own words. How is meiosis I different from meiosis II? Explain reproductive mitotic and meiotic cell division ...
How is DNA stored in eukaryotic cells? How does DNA relate to epigenesis? How are DNA and mRNA alike? How is DNA packaged in the nucleus of somatic cells? How does the DNA of prokaryotic cells differ from the DNA of eukaryotic cells? How does the DNA of related organisms show similarity...
The exten sive packaging of inactive DNA was considered the primary difference between eukaryotic and prokaryotic genomes and except for that point both would be similarly regulated by cis-acting sequences and trans acting factors. Our view of eukaryotic chromosomes has evolved dra matically over the...
Chromatin structureis a major characteristic of eukaryotic cells compared with prokaryotic cells (Struhl, 1999). Nucleosome array, with 146bp of DNA making about 1.7 left-handed superhelical turns around corehistoneoctamer (Luger, Mader, Richmond, Sargent, & Richmond, 1997), and usually with linker...
The DNA ofprokaryoticcells posses a minimal amount of information, so it is simply distributed in a circular form over the cytoplasm. However, the DNA of eukaryotes contains millions of pieces of hereditary information. Therefore, it’s important to organize them properly in order to fit into th...
Not only are the genomes of most eukaryotes much more complex than those of prokaryotes, but the DNA of eukaryotic cells is also organized differently from that of prokaryotic cells. The genomes of prokaryotes are contained in single chromosomes, which are usually circular DNA molecules. In contras...
mechanical properties of the fibers that defines the existence and frequency of the cluster–cluster contacts. We did not find that the difference in DNA sequence (artificial ‘601’ nucleosome-positioning, prokaryotic λ-DNA, or human DNA) makes a noticeable difference for cluster–cluster ...
of a relatively small number of genes. However, much research remains to be performed before investigators precisely understand how the many mechanisms of chromatin remodeling operate, as well as how they work together to result in the complex patterns of gene expressioncharacteristicof eukaryotic ...